Near-Net Shape Manufacturing of Hull Structures in Ship-Building by Using Control of Temperature Distribution and Material Properties

提高切割、焊接、装配等制造工艺的精度，对提高船体结构的制造质量具有重要意义。焊接变形是影响精密制造的重要因素之一，但要有意识地控制焊接变形是困难的。通过控制焊接过程中的温度分布和船体板及焊缝金属的材料性能，研究了一种控制近终形制造中焊缝变形的新方法。

It is important for the quality of hull structures in ship-building to increase precision of manufacturing process such as cutting, welding and assembling. Weld distortion is one of the most important factors for precise manufacturing, but it was difficult to intentionally control weld distortion. A new methodology of controlling weld distortion for near-net shape manufacturing is studied by using control of temperature distributions during weld process and material properties in hull plate and weld metal.